HWS1 by CDGM

Standard Rare Environmentally Dangerous
Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 2.0–14.0 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 2.0–14.0 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 1.300–15.500 µm
Optical Properties
Refractive Index (nd)
Abbe Number (Vd)
Dispersion Formula Herzberger
Wavelength Range 2.0 — 14.0 µm
$$L = \frac{1}{\lambda^2 - 0.028} n(\lambda) = 2.62096 + 0.0654863\,L + 0.0989151\,L^2 - 0.000205058\,\lambda^2 + 3.4956 \times 10^{-7}\,\lambda^4 - 1.27255 \times 10^{-9}\,\lambda^6$$
Thermal Properties
TCE -30/70°C (10-6/K) 15.2
TCE 100/300°C (10-6/K)
Thermal Conductivity (W/mK)
Heat Capacity (J/gK) 0.33
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[5.77 \times 10^{-5} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 4.68
Relative Cost 500.1
Mechanical Properties
Young's Modulus (GPa) 22.3
Poisson's Ratio
Knoop Hardness (kgf/mm²) 135.0
Chemical Resistance
Climatic Resistance
Stain Resistance
Acid Resistance
Alkali Resistance
Phosphate Resistance
Notes

Infrared optical glass

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